Improvement in pipe-wrenches



UNITED STATES PATENT OFFICE;

ALFRED sEooR,oE NORTH ADAMS, MASSACHUSETTS, ASSIeNoR To HIM.

SEEE AND JOHN J. MARSH, or SAME PLACE...

'IMPROVEMENT |N PiPE-wRENcHES.

Specification formingrpart of Letters Patent No. 133,804, dated December10, 1872.

To all whom it. may concern:

Be it known that I, ALFRED SEcoR, of North Adams, in the county ofBerkshire and State of Massachusetts, have invented certain new anduseful Improvements in Pipe- Wrenches; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing and to the letters of referencemarked thereon which form a part of this specication.

Thenatui'e of myinvention consists in the construction 'and arrangementof a pipe-wrench, will be hereinafter'more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing in which-Figures 1, 2, and 3 are detached perspective views of the various partsof which my wrench is composed; and Fig. 4 is a side view of the Wrenchcomplete.

Arepresents the stem of the wrench, provided at its `outer end with ahead, B, which is formed upon it and corrugated or toothed on its outersurface. On the other end of the stem A is fastened the handle C in anysuitable manner. Two sides of the stem are smooth or flat, while theother two are threaded, as Shown in Figs. 3 and 4. D represents themovable jaw, at the inner end of which is formed a ring, E, and on theother side of this ring is formed or attached a handle, G, extending inopposite direction to that of the jaw D.Y This ring E is slotted atv thetop and bottom, as shown in Fig. 1, for the passage of the stem, theslots being, however, large enough'to allow of the jaw swinging back andforth. Within the ring E is placed a nut, H,

- and two washers, I I, one at each end of the nut. These washers are inthe shape shown in Fig. 2, so that they will, with the nut H,

fill the ring E, and they are slotted sufciently to move freely up anddown on the stem A.

After the nut and washers are placed within the ring E the inner end ofthe stem A is passed through, the nut screwing onto the stem, and thenthe handle C is put on. It will thus be seen that the movable jaw D hasnot only the motion up and down on the Stem A, but that it also has aSwingin g motion on the nut and washers as a center. By means of thehandle G the swinging jaw is thrown on the pipe.

Having thus fully described my invention,

what I claim as new, and desire to Secure by Letters Patent, is-

1. The movable jaw of thewrench, when the same has au independent motionupon the washers II as well as an up-and-down mot-ion upon the stem,substantially as and for the purpose herein specified.

2. The jaw D with slotted ring E and handle G, constructed and arrangedsubstantially as and for the purposes herein set forth.

3. The combination of the threaded stem A with jaw B formed upon it, theswinging jaw D with ring E and handle G, the nut H, and washers I I, allconstructed and arranged substantially as and for the purposes hereinset forth.

In testimony that I claim the foregoing as Vmy own I aix my Si gnaturein presence of two witnesses. l

, ALFRED SEGOB.

' Witnesses: I

. A. G. POTTER,

WM. H. SANFORD.

